How the editor works

ReflowPDF is a PDF editor in the browser that keeps the document behind the pages: when a paragraph or a table grows, what follows moves, onto the next page if it has to. These pages describe the editor at app.reflowpdf.com, part by part, in the words it uses.

Open the editor Start with the canvas

The parts of the editor

The toolbar carries, from the left: the document’s name, New, undo, redo and History, the zoom, Page settings (shown as the paper size), the accessibility check, the Visual and Code switch, View, Import PDF, Translate and Download, then Help and your account.

The rail on the left opens Blocks (what you can add), Templates (documents to start from), Library (your documents and pictures, with an account) and Outline (the document’s blocks as a tree). The page is in the middle; Properties, on the right, shows the settings of the block you select.

Without an account, and with one

The editor opens for everyone, and every page can be downloaded; without an account each downloaded page carries a small mark, and your document is kept in this browser. A free account keeps your documents online, gives 50 pages a month without the mark, and 10 AI pages a month for importing PDFs, Ask AI and Translate. Pricing has what Pro and Max add.

In these pages

Getting started

The canvasClick to type, select a block, zoom and pan, and the block menu.

Building a document

BlocksThe seven groups of blocks, from text and tables to form fields and shapes.
PropertiesThe panel on the right: the selected block’s size, text, spacing, colours and more.
Arrange, position and text flowStacked, in a row or a grid; where a block sits; text around it.
OutlineThe document’s blocks as a tree: reorder, nest, hide and lock them.
PagesHow text runs across pages, page breaks, and the page menu.
Page settingsPaper and margins, fonts and language, headers and footers, decorations.

Making documents

Templates and your documentsNew documents, templates, the Library and earlier versions.
Forms and signingFields a reader fills in, and signing a document in the editor.
Ask AI and TranslateChanging a block by asking, translating a document, and what they cost.
The Code viewThe document’s HTML and CSS beside its pages, and templates with data.

PDF in and out

Import a PDFA PDF made here opens without AI; any other is rebuilt with AI, with an account.
Download a PDFThe Download menu, keeping a PDF editable, and the mark without an account.
Accessible and archival PDFTagged PDF/UA-1 by default, PDF/UA-2 and PDF/A-3a, and the accessibility check.

Integrations

AI assistants (MCP)Connect Claude, ChatGPT, Cursor or VS Code: your assistant makes PDFs you can edit.

Phone and keyboard

On a phoneThe touch editor: what each touch does, Insert, Outline, Edit and More.
ShortcutsThe keyboard shortcuts, and the command palette (Ctrl K).

To print PDFs from your own program, see the developer API documentation: the HTML-to-PDF engine, templates with data and the SDKs.